18180828

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2371}}^1$

素因数の和:2455

約数の個数: 48

約数和(自身を含む): 47819520

約数和(自身を除く): 29638692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2371, 2556, 3834, 4742, 7113, 7668, 9484, 14226, 21339, 28452, 42678, 64017, 85356, 128034, 168341, 256068, 336682, 505023, 673364, 1010046, 1515069, 2020092, 3030138, 4545207, 6060276, 9090414, 18180828]

約数ペア:

[(1, 18180828), (2, 9090414), (3, 6060276), (4, 4545207), (6, 3030138), (9, 2020092), (12, 1515069), (18, 1010046), (27, 673364), (36, 505023), (54, 336682), (71, 256068), (108, 168341), (142, 128034), (213, 85356), (284, 64017), (426, 42678), (639, 28452), (852, 21339), (1278, 14226), (1917, 9484), (2371, 7668), (2556, 7113), (3834, 4742)]